OpenKnowledge is a beautiful WYSIWYG markdown editing app with integrations for Claude, Codex, and other harnesses. For notes, knowledge bases, specs, and LLM wikis. Private, local, and free.
Highlights:
- Full true WYSIWYG so that editing markdown files feels like editing a Google Doc or Notion page.
- Collaborative AI-editing with Claude, Codex, and Cursor desktop apps. Can be used with any harness/agent via MCP/CLI, like OpenCode.
- Out-of-the-box MCP, skills, and agentic search for LLM Wikis, agent second brains, and knowledge graphs.
- No-code Team sharing and Auto-sync powered by git/GitHub under the hood.
- Embeddable HTML and rich components for writing engineering specs and visualized reports.
- A built-in TUI in the Desktop app and a Web UI for users who prefer terminals.
macOS: download the desktop app — open the DMG, drag OpenKnowledge to Applications, and launch it. Latest release.
Linux, Windows, Intel Mac: run the same editor as a local web app via the CLI (Node.js 24+ required):
npm install -g @inkeep/open-knowledge
cd your-project
ok init # scaffold the project + wire up Claude Code, Cursor, and Codex
ok start --open # serve the web editor and open it in your browserUse OpenKnowledge by opening any existing folder on your computer that contains markdown or mdx files. Can be used with existing codebases, wikis, Obsidian vaults, etc.
Think of it as Notion meets VSCode.
You can also start from scratch with one of the starter packs, which include e.g. a quickstart for an LLM Wiki.
The app will automatically initialize your project with MCP and skill configs for agent harnesses detected on your computer. Git sync and sharing can optionally be enabled.
Docs for general usage: https://openknowledge.ai/docs.
Public pull requests or issues are welcome!
See CONTRIBUTING.md for details.
OpenKnowledge is licensed under the GNU General Public License v3.0 or later (GPL-3.0-or-later).
Feel free to file an issue or ask questions on the Discord community.
⭐️ If you'd like to support this project, consider starring the repo ⭐️
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